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The incredible image quality provides unprecedented visual experiences. Enjoy enhanced control over light and image composition.
By constantly employing state-of-the-art designs and advanced cutting-edge technologies, SIGMA has gained extensive experience in producing fast fixed focal lengths that can extract the full potential from ultra-high-resolution DSLRs. As its latest achievement in this category, SIGMA introduces an ultra-wide-angle F1.4 lens. With a 20mm focal length and F1.4 speed, this Lens delivers outstanding brightness, natural bokeh and unprecedented visual experiences. By taking advantage of the wide-angle perspective and narrow depth-of-field range at wide-open apertures, this lens is not only ideal for ultra-wide-angle subjects such as landscapes and starry skies, but is also suitable for snapshots in low-light conditions, indoor photography, portraits with natural bokeh, and more.
Low Chromatic Aberration
The Lens minimizes chromatic aberration, which is otherwise a typical problem with fast ultra-wide-angle lenses. It incorporates two FLD ("F" Low Dispersion)° and five SLD (Special Low Dispersion) glass elements to minimize lateral chromatic aberrations that would mainly be visible at the edges of the image. Likewise, an optimized power distribution helps to minimize longitudinal chromatic aberration. As a result, this Lens delivers high image quality without color streaking in any situation, and its imaging performance is consistently sharp with high contrast.
Minimized Distortion
Distortion is a typical problem with wide-angle lenses that cannot be corrected simply by changing the aperture value. So even the development phase of the Lens is crucial to minimize distortion. The perfect alignment of light directly with the first lens element and the inclusion of optimally positioned aspherical glass elements help to minimize distortion across the entire image in the SIGMA 20mm F1.4 DG HSM | Art.
Reflection and ghosting eliminating design
From the very beginning of the lens design process, susceptibility to reflections and ghosting was studied to achieve an optical design that is resistant to even strong backlighting. Already in the prototype phase, SIGMA did not rely on simulations alone, but also experimented in practice to better evaluate the cause of reflections and ghosting in a variety of shooting situations, so that in turn measures could be taken to mitigate them. In addition, SIGMA's Super Multi Layer coating reduces reflections and ghosting and delivers sharp, high-contrast images even when backlit.
The ideal fast lens for snapshots and more
Superior performance for the high-megapixel era.
At the beginning of the film camera era, there was very little high-sensitivity film stock. As a result, fast lenses became known as "fast lenses," which gave good results in low-light conditions. Such Lenses are ideal for shooting indoors, at dusk, under cloudy skies, or under other low-light situations. Because the SIGMA 20mm F1.4 DG HSM | Art offers the benefits of an ultra-wide-angle lens with barely noticeable distortion, it is ideal for shooting landscapes, starry skies and architecture. In addition to wide-angle shots with the entire scene in focus, photographers can take advantage of the large initial aperture to create images with an isolated subject against a background with attractive bokeh. This powerful Lens is designed specifically for high-resolution digital cameras and delivers just that superior resolution, along with absolutely clear image quality, even at open aperture.
The incredible image quality provides unprecedented visual experiences. Enjoy enhanced control over light and image composition.
By constantly employing state-of-the-art designs and advanced cutting-edge technologies, SIGMA has gained extensive experience in producing fast fixed focal lengths that can extract the full potential from ultra-high-resolution DSLRs. As its latest achievement in this category, SIGMA introduces an ultra-wide-angle F1.4 lens. With a 20mm focal length and F1.4 speed, this Lens delivers outstanding brightness, natural bokeh and unprecedented visual experiences. By taking advantage of the wide-angle perspective and narrow depth-of-field range at wide-open apertures, this lens is not only ideal for ultra-wide-angle subjects such as landscapes and starry skies, but is also suitable for snapshots in low-light conditions, indoor photography, portraits with natural bokeh, and more.
Low Chromatic Aberration
The Lens minimizes chromatic aberration, which is otherwise a typical problem with fast ultra-wide-angle lenses. It incorporates two FLD ("F" Low Dispersion)° and five SLD (Special Low Dispersion) glass elements to minimize lateral chromatic aberrations that would mainly be visible at the edges of the image. Likewise, an optimized power distribution helps to minimize longitudinal chromatic aberration. As a result, this Lens delivers high image quality without color streaking in any situation, and its imaging performance is consistently sharp with high contrast.
Minimized Distortion
Distortion is a typical problem with wide-angle lenses that cannot be corrected simply by changing the aperture value. So even the development phase of the Lens is crucial to minimize distortion. The perfect alignment of light directly with the first lens element and the inclusion of optimally positioned aspherical glass elements help to minimize distortion across the entire image in the SIGMA 20mm F1.4 DG HSM | Art.
Reflection and ghosting eliminating design
From the very beginning of the lens design process, susceptibility to reflections and ghosting was studied to achieve an optical design that is resistant to even strong backlighting. Already in the prototype phase, SIGMA did not rely on simulations alone, but also experimented in practice to better evaluate the cause of reflections and ghosting in a variety of shooting situations, so that in turn measures could be taken to mitigate them. In addition, SIGMA's Super Multi Layer coating reduces reflections and ghosting and delivers sharp, high-contrast images even when backlit.
The ideal fast lens for snapshots and more
Superior performance for the high-megapixel era.
At the beginning of the film camera era, there was very little high-sensitivity film stock. As a result, fast lenses became known as "fast lenses," which gave good results in low-light conditions. Such Lenses are ideal for shooting indoors, at dusk, under cloudy skies, or under other low-light situations. Because the SIGMA 20mm F1.4 DG HSM | Art offers the benefits of an ultra-wide-angle lens with barely noticeable distortion, it is ideal for shooting landscapes, starry skies and architecture. In addition to wide-angle shots with the entire scene in focus, photographers can take advantage of the large initial aperture to create images with an isolated subject against a background with attractive bokeh. This powerful Lens is designed specifically for high-resolution digital cameras and delivers just that superior resolution, along with absolutely clear image quality, even at open aperture.
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